How do I get same hardware id as in UnityEngine.SystemInfo.deviceUniqueIdentifier?

Question

I want to get the same hardware id in windows forms application that i get when i use UnityEngine.SystemInfo.deviceUniqueIdentifier in my game.

How can I get the same hardware id?

Answer 1

I know I'm late but Unity's SystemInfo::deviceUniqueIdentifier is built like this:

Requires: using System.Management; in System.Management.dll (.NET Framework)

private string GetDeviceUniqueIdentifier() {
    string ret = string.Empty;

    string concatStr = string.Empty;
    try {
        using ManagementObjectSearcher searcherBb = new ManagementObjectSearcher("SELECT * FROM Win32_BaseBoard");
        foreach (var obj in searcherBb.Get()) {
            concatStr += (string)obj.Properties["SerialNumber"].Value ?? string.Empty;
        }

        using ManagementObjectSearcher searcherBios = new ManagementObjectSearcher("SELECT * FROM Win32_BIOS");
        foreach (var obj in searcherBios.Get()) {
            concatStr += (string)obj.Properties["SerialNumber"].Value ?? string.Empty;
        }

        using ManagementObjectSearcher searcherOs = new ManagementObjectSearcher("SELECT * FROM Win32_OperatingSystem");
        foreach (var obj in searcherOs.Get()) {
            concatStr += (string)obj.Properties["SerialNumber"].Value ?? string.Empty;
        }

        using var sha1 = SHA1.Create();
        ret = string.Join("", sha1.ComputeHash(Encoding.UTF8.GetBytes(concatStr)).Select(b => b.ToString("x2")));
    } catch (Exception e) {
        Console.WriteLine(e.ToString());
    }

    return ret;
}

I reverse engineered the Unity Editor to find out what it actually queries in the WMI. This is obviously the Windows implementation.